betterdocs
/
react-src
/
gutenberg
/
blocks
/
code-snippet
/
src
/
components
/
CodeMirrorControl.js
CodeMirrorControl.js in BetterDocs – AI Documentation, Knowledge Base, MCP Server, Docs, Wikis, FAQ & Chatbot 4.9.5, at react-src/gutenberg/blocks/code-snippet/src/components/CodeMirrorControl.js
| 1 | import { __ } from '@wordpress/i18n'; |
| 2 | import { BaseControl } from '@wordpress/components'; |
| 3 | import { useEffect, useRef, useState } from '@wordpress/element'; |
| 4 | |
| 5 | import './codemirror.scss'; |
| 6 | |
| 7 | /** |
| 8 | * CodeMirror Control Component for Gutenberg |
| 9 | * |
| 10 | * Uses WordPress's built-in wp.codeEditor API which wraps CodeMirror |
| 11 | */ |
| 12 | const CodeMirrorControl = ({ |
| 13 | label, |
| 14 | value, |
| 15 | onChange, |
| 16 | placeholder = '', |
| 17 | help = '', |
| 18 | rows = 15 |
| 19 | }) => { |
| 20 | const textareaRef = useRef(null); |
| 21 | const editorRef = useRef(null); |
| 22 | const isInitialized = useRef(false); |
| 23 | const [isLoading, setIsLoading] = useState(true); |
| 24 | const [hasError, setHasError] = useState(false); |
| 25 | const [isCodeMirrorReady, setIsCodeMirrorReady] = useState(false); |
| 26 | |
| 27 | // Note: Language mode mapping removed since we use plain text mode for editor |
| 28 | |
| 29 | // Initialize CodeMirror with retry mechanism |
| 30 | useEffect(() => { |
| 31 | if (!textareaRef.current || isInitialized.current) { |
| 32 | return; |
| 33 | } |
| 34 | |
| 35 | const initializeCodeMirror = () => { |
| 36 | // Check if wp.codeEditor is available |
| 37 | if (typeof window.wp === 'undefined' || |
| 38 | typeof window.wp.codeEditor === 'undefined' || |
| 39 | typeof window.wp.codeEditor.initialize !== 'function') { |
| 40 | console.warn('WordPress CodeEditor not available. Retrying...'); |
| 41 | return false; |
| 42 | } |
| 43 | |
| 44 | // Check if CodeMirror is available |
| 45 | if (typeof window.CodeMirror === 'undefined') { |
| 46 | console.warn('CodeMirror library not loaded. Retrying...'); |
| 47 | return false; |
| 48 | } |
| 49 | |
| 50 | console.log('Initializing CodeMirror for plain text editing (no syntax highlighting)'); |
| 51 | |
| 52 | // CodeMirror settings - plain text mode for editor |
| 53 | const settings = { |
| 54 | codemirror: { |
| 55 | mode: 'text/plain', // Always use plain text mode |
| 56 | lineNumbers: true, |
| 57 | lineWrapping: true, |
| 58 | indentUnit: 4, |
| 59 | tabSize: 4, |
| 60 | indentWithTabs: false, |
| 61 | matchBrackets: false, // Disable bracket matching |
| 62 | autoCloseBrackets: false, // Disable auto-closing brackets |
| 63 | foldGutter: false, // Disable code folding |
| 64 | gutters: ['CodeMirror-linenumbers'], // Only line numbers |
| 65 | extraKeys: { |
| 66 | 'Ctrl-Space': 'autocomplete', |
| 67 | 'Tab': function(cm) { |
| 68 | if (cm.somethingSelected()) { |
| 69 | cm.indentSelection('add'); |
| 70 | } else { |
| 71 | cm.replaceSelection(' ', 'end'); |
| 72 | } |
| 73 | }, |
| 74 | 'Shift-Tab': function(cm) { |
| 75 | cm.indentSelection('subtract'); |
| 76 | } |
| 77 | }, |
| 78 | theme: 'default', |
| 79 | placeholder: placeholder |
| 80 | } |
| 81 | }; |
| 82 | |
| 83 | try { |
| 84 | // Initialize CodeMirror |
| 85 | const editorInstance = window.wp.codeEditor.initialize(textareaRef.current, settings); |
| 86 | editorRef.current = editorInstance; |
| 87 | isInitialized.current = true; |
| 88 | setIsLoading(false); |
| 89 | setHasError(false); |
| 90 | setIsCodeMirrorReady(true); |
| 91 | |
| 92 | // Hide the original textarea |
| 93 | if (textareaRef.current) { |
| 94 | textareaRef.current.style.display = 'none'; |
| 95 | } |
| 96 | |
| 97 | // Set initial value |
| 98 | if (value) { |
| 99 | editorInstance.codemirror.setValue(value); |
| 100 | } |
| 101 | |
| 102 | // Listen for changes |
| 103 | editorInstance.codemirror.on('change', (cm) => { |
| 104 | onChange(cm.getValue()); |
| 105 | }); |
| 106 | |
| 107 | // Focus handling |
| 108 | editorInstance.codemirror.on('focus', () => { |
| 109 | const control = textareaRef.current?.closest('.components-base-control'); |
| 110 | if (control) { |
| 111 | control.classList.add('is-focused'); |
| 112 | } |
| 113 | }); |
| 114 | |
| 115 | editorInstance.codemirror.on('blur', () => { |
| 116 | const control = textareaRef.current?.closest('.components-base-control'); |
| 117 | if (control) { |
| 118 | control.classList.remove('is-focused'); |
| 119 | } |
| 120 | }); |
| 121 | |
| 122 | // Refresh CodeMirror to ensure proper rendering |
| 123 | setTimeout(() => { |
| 124 | if (editorInstance.codemirror) { |
| 125 | editorInstance.codemirror.refresh(); |
| 126 | } |
| 127 | }, 100); |
| 128 | |
| 129 | console.log('CodeMirror initialized successfully in plain text mode'); |
| 130 | return true; |
| 131 | |
| 132 | } catch (error) { |
| 133 | console.error('Failed to initialize CodeMirror:', error); |
| 134 | setHasError(true); |
| 135 | setIsLoading(false); |
| 136 | setIsCodeMirrorReady(false); |
| 137 | return false; |
| 138 | } |
| 139 | }; |
| 140 | |
| 141 | // Try to initialize immediately |
| 142 | if (!initializeCodeMirror()) { |
| 143 | // If failed, retry after a short delay |
| 144 | const retryTimeout = setTimeout(() => { |
| 145 | if (!isInitialized.current) { |
| 146 | if (!initializeCodeMirror()) { |
| 147 | // Final fallback - show error state and show textarea |
| 148 | setIsLoading(false); |
| 149 | setHasError(true); |
| 150 | setIsCodeMirrorReady(false); |
| 151 | if (textareaRef.current) { |
| 152 | textareaRef.current.style.display = 'block'; |
| 153 | } |
| 154 | console.warn('CodeMirror failed to initialize after retry. Using plain textarea.'); |
| 155 | } |
| 156 | } |
| 157 | }, 1000); |
| 158 | |
| 159 | return () => clearTimeout(retryTimeout); |
| 160 | } |
| 161 | |
| 162 | // Cleanup function |
| 163 | return () => { |
| 164 | if (editorRef.current && editorRef.current.codemirror) { |
| 165 | try { |
| 166 | editorRef.current.codemirror.toTextArea(); |
| 167 | } catch (error) { |
| 168 | console.warn('Error during CodeMirror cleanup:', error); |
| 169 | } |
| 170 | editorRef.current = null; |
| 171 | isInitialized.current = false; |
| 172 | setIsCodeMirrorReady(false); |
| 173 | // Show textarea again if CodeMirror is destroyed |
| 174 | if (textareaRef.current) { |
| 175 | textareaRef.current.style.display = 'block'; |
| 176 | } |
| 177 | } |
| 178 | }; |
| 179 | }, []); // Only run once on mount |
| 180 | |
| 181 | // Note: Language mode updates removed since we use plain text mode |
| 182 | |
| 183 | // Update value when prop changes (external updates) |
| 184 | useEffect(() => { |
| 185 | if (editorRef.current && editorRef.current.codemirror && isInitialized.current) { |
| 186 | const currentValue = editorRef.current.codemirror.getValue(); |
| 187 | if (currentValue !== value) { |
| 188 | editorRef.current.codemirror.setValue(value || ''); |
| 189 | } |
| 190 | } |
| 191 | }, [value]); |
| 192 | |
| 193 | return ( |
| 194 | <BaseControl |
| 195 | label={label} |
| 196 | help={help || (hasError ? __('CodeMirror failed to load. Using plain textarea.', 'betterdocs') : '')} |
| 197 | className={`betterdocs-codemirror-control ${isLoading ? 'is-loading' : ''} ${hasError ? 'has-error' : ''} ${isCodeMirrorReady ? 'is-codemirror-ready' : ''}`} |
| 198 | > |
| 199 | {isLoading && ( |
| 200 | <div className="codemirror-loading"> |
| 201 | <span>{__('Loading code editor...', 'betterdocs')}</span> |
| 202 | </div> |
| 203 | )} |
| 204 | <textarea |
| 205 | ref={textareaRef} |
| 206 | defaultValue={value || ''} |
| 207 | placeholder={placeholder} |
| 208 | rows={rows} |
| 209 | onChange={(e) => { |
| 210 | // Fallback for when CodeMirror is not available |
| 211 | if (!isInitialized.current) { |
| 212 | onChange(e.target.value); |
| 213 | } |
| 214 | }} |
| 215 | style={{ |
| 216 | width: '100%', |
| 217 | fontFamily: 'Consolas, Monaco, "Andale Mono", "Ubuntu Mono", monospace', |
| 218 | fontSize: '13px', |
| 219 | lineHeight: '1.4', |
| 220 | padding: '8px', |
| 221 | border: '1px solid #ddd', |
| 222 | borderRadius: '4px', |
| 223 | resize: 'vertical', |
| 224 | minHeight: '200px', |
| 225 | display: (isLoading || (!isCodeMirrorReady && hasError)) ? 'block' : 'none' |
| 226 | }} |
| 227 | /> |
| 228 | </BaseControl> |
| 229 | ); |
| 230 | }; |
| 231 | |
| 232 | export default CodeMirrorControl; |
| 233 |